K 10 svn:author V 4 jkim K 8 svn:date V 27 2016-01-13T18:13:57.032041Z K 7 svn:log V 539 MFH: r405058, r405320 - Stub implementation of OperatingSystemImpl. - Partially implement getThreadUserTime() using getrusage(2). Note we can only get usage for the current thread. Return -1 if the requested function is not supported, i.e., user time for other threads, rather than crash. - Properly implement os::elapsedVTime() using getrusage(). Basically, it is taken from Linux version. - Temporarily revert r403748 to fix bootstrapping with earlier OpenJDK8. PR: 205229, 205523, 205544, 205843 Approved by: ports-secteam (feld) END